“…Some authors reported finding it to have a preventative effect ( Johnson, Shamblen, Ogilvie, Collins, & Saylor, 2009;Luna-Adame et al, 2013;Mandel, Bialous, & Glantz, 2006;Spoth, Trudeau, Shin, & Redmond, 2008;Smith et al, 2004) and others reported findings of its positive impact Fraguela, Martin, & Trinanes, 2003;Griffin, Botvin, Nichols, & Doyle, 2003;Seal, 2006). In the results of many studies performed on LST's positive impact, its effectiveness was seen for the prevention of tobacco use (Botvin & Eng, 1982;Botvin, Renick, & Baker, 1983;Botvin, Eng, & Williams, 1980, Zollinger et al, 2003, alcohol use (Botvin, Baker, Dusenbury, Tortu, & Botvin, 1990;Botvin, Schinke, Epstein, Diaz, & Botvin, 1995), marijuana use (Botvin, Baker, Dusenbury et al, 1990 and multiple drug use (Botvin, Baker, Dusenbury et al, 1990;Botvin et al, 1997).…”